\begin{tikzpicture}
    \tkzDefPoints{0/0/B, 2.5/0/C}
    \tkzDefPointBy[rotation=center B angle  30](C)  \tkzGetPoint{D}
    \tkzDefPointBy[rotation=center C angle -45](B)  \tkzGetPoint{e}
    \tkzDefPointOnLine[pos=0.8](C,e)  \tkzGetPoint{E}
    \tkzInterLL(B,D)(C,E)  \tkzGetPoint{A}

    \tkzDrawSegments(B,C  B,D  C,E)
    \tkzLabelPoints[above](A,E,D)
    \tkzLabelPoints[left](B)
    \tkzLabelPoints[right](C)
\end{tikzpicture}

